Jade Emperor Mountain |
inactive |
mid-ocean ridge |
SWIR |
-37.9400 |
49.2600 |
1500 |
2010 video sled, plume survey, and geological sampling all suggest inactive |
western Manus Basin, Bismarck Sea |
inactive |
back-arc spreading center |
Manus Basin |
-3.0000 |
147.0000 |
1800 |
NotProvided |
Carlsberg Ridge, 1.67 S |
inactive |
mid-ocean ridge |
Carlsberg Ridge |
-1.6768 |
67.7700 |
4500 |
NotProvided |
Explorer Deep |
inactive |
mid-ocean ridge |
Explorer Ridge |
50.1000 |
-129.7500 |
3200 |
1969, deposits only |
Nishi-Shichito Ridge |
inactive |
arc volcano |
Izu-Bonin Arc |
31.3667 |
138.7500 |
1600 |
NotProvided |
EPR 87D1 Seamount |
inactive |
mid-ocean ridge |
N EPR |
11.5333 |
-103.8600 |
2090 |
NotProvided |
Kasuga 1 Seamount |
inactive |
arc volcano |
Mariana Arc |
21.7650 |
143.7100 |
600 |
2003 no plume detected |
Dellwood Seamount |
inactive |
mid-ocean ridge |
Explorer Ridge |
50.7470 |
-130.8961 |
800 |
1974 or earlier deposits only; 2018 ROV Hercules inactive |
Gorda Ridge, 41 30'N |
inactive |
mid-ocean ridge |
Gorda Ridge |
41.5167 |
-127.4500 |
3350 |
1984 deposits only |
Mata Nima |
inactive |
arc volcano |
Lau Basin |
-14.9583 |
-173.7833 |
2670 |
2010 no plume detected |
Hawaiian Ridge |
inactive |
intra-plate volcano |
Central Pacific |
15.0000 |
-157.5000 |
5000 |
1987 or earlier |
Ashadze-3 |
inactive |
mid-ocean ridge |
N MAR |
12.9860 |
-44.8610 |
4200 |
2005 plume and dredge only |
Kurose Hole |
inactive |
arc volcano |
Izu-Bonin Arc |
33.4000 |
139.6800 |
760 |
1989 inactive; 2009 inactive |
MAR, 15 50'N |
inactive |
mid-ocean ridge |
N MAR |
15.8667 |
-46.6667 |
3000 |
NotProvided |
MESO Zone |
inactive |
mid-ocean ridge |
CIR |
-23.3927 |
69.2422 |
2850 |
1993 TV grab and water column measurements |
central Manus Basin, Bismarck Sea |
inactive |
back-arc spreading center |
Manus Basin |
-3.4199 |
150.1681 |
2500 |
NotProvided |
Galapagos Rift, 85 50'W |
inactive |
mid-ocean ridge |
Galapagos Rift |
0.7500 |
-85.8333 |
2600 |
1988 or earlier submersible observations |
Ashadze-4 |
inactive |
mid-ocean ridge |
N MAR |
12.9700 |
-44.8500 |
4530 |
2007 ROV VICTOR 6000 did not find hydrothermal activity |
Solwara 12 |
inactive |
back-arc spreading center |
Manus Basin |
-3.7086 |
151.8834 |
1920 |
2009 commercial ROV Fugro FV300 inactive |
MAR, 16 46'N |
inactive |
mid-ocean ridge |
N MAR |
16.7950 |
-46.3800 |
3300 |
NotProvided |
Hess Deep |
inactive |
mid-ocean ridge |
Galapagos Rift |
2.2500 |
-101.5000 |
5100 |
NotProvided |
MAR, 12 48'N |
inactive |
mid-ocean ridge |
N MAR |
12.8000 |
-44.7883 |
2400 |
NotProvided |
Tripartite Ridge, south of TR1 |
inactive |
back-arc spreading center |
North Fiji Basin |
-14.5000 |
177.0000 |
3000 |
NotProvided |
east of Central Spreading Ridge |
inactive |
back-arc spreading center |
North Fiji Basin |
-15.4510 |
174.6902 |
3000 |
NotProvided |
MAR, 22 30'N |
inactive |
mid-ocean ridge |
N MAR |
22.5000 |
-45.0050 |
2800 |
NotProvided |
EPR, 13 N, SE Seamount |
inactive |
mid-ocean ridge |
N EPR |
12.7000 |
-103.8600 |
2500 |
1981 towed camera, dredging, and plume did not confirm activity; 1982 and 1984 submersible Cyana did not confirm activity |
Paramushir Island |
inactive |
arc volcano |
Kuril Arc |
50.3300 |
155.5000 |
800 |
NotProvided |
Tripartite Ridge, south of TR3 |
inactive |
back-arc spreading center |
North Fiji Basin |
-14.0745 |
175.4729 |
3000 |
NotProvided |
Green Seamount |
inactive |
mid-ocean ridge |
N EPR |
20.8033 |
-109.2833 |
2000 |
1982 submersible Alvin observed only inactive |
Romanche Fracture Zone |
inactive |
mid-ocean ridge |
S MAR |
-0.9767 |
-24.5133 |
3100 |
NotProvided |